Finding the Fourth Proportional to 13,020.56, 19,504.76 and 5,990.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,020.56 : 19,504.76 = 5,990.94 : x
2. Step 2: Convert to fraction form
   13,020.56/19,504.76 = 5,990.94/x
3. Step 3: Cross multiply
   13,020.56x = 19,504.76 × 5,990.94
4. Step 4: Simplify right side
   13,020.56x = 116,851,846.87
5. Step 5: Solve for x
   x = 116,851,846.87/13,020.56
6. Step 6: Final answer
   x = 8,974.41